The present invention relates, inter alia, to metal complexes having imp-roved solubility, to a process for the preparation of the metal complexes, to devices comprising these metal complexes, and to the use of the metal complexes.本發明有關例如具有經改善之溶解度的金屬錯合物、製備該等金屬錯合物之方法、包含該等金屬錯合物之裝置,和該等金屬錯合物之用途。